Title page for E-project-043009-155135

Project Type MQP

Submission date 2009-04-30

Authors
Derek R Hall, BE
Edward Kalust Tacvorian, BE
Matthew Wainwright, BE
David Aaron Weiner, BE

URN E-project-043009-155135

Title Design of a Novel Elliptical Skin Biopsy Punch Device

Advisor
Gaudette, Glenn R, BE

Availability unrestricted

Abstract
Current skin biopsy techniques utilizing a punch biopsy device can leave raised scars. With 3.8 million procedures per year, the potential marketability of a superior device is substantial. The goal of this project is to design an elliptical biopsy punch that is easy to use and minimizes scarring. Mechanical testing on porcine skin determined the force required to breach the skin using a #11 scalpel, a circular punch, and a novel blade design. The force required to penetrate the skin using the prototype was 17 lbs versus 4.3 lbs for the rotational punch. Initial force data has resulted in a final blade design that requires less force and includes fail-safes to prevent excessive depth penetration. The resulting wound has clean edges and is of proper dimensions for superior suturing layout.

Files
DSTMQP_Plastipunch.pdf

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Project Type	MQP
Submission date	2009-04-30
Authors	Derek R Hall, BE Edward Kalust Tacvorian, BE Matthew Wainwright, BE David Aaron Weiner, BE
URN	E-project-043009-155135
Title	Design of a Novel Elliptical Skin Biopsy Punch Device
Advisor	Gaudette, Glenn R, BE
Availability	unrestricted
Abstract Current skin biopsy techniques utilizing a punch biopsy device can leave raised scars. With 3.8 million procedures per year, the potential marketability of a superior device is substantial. The goal of this project is to design an elliptical biopsy punch that is easy to use and minimizes scarring. Mechanical testing on porcine skin determined the force required to breach the skin using a #11 scalpel, a circular punch, and a novel blade design. The force required to penetrate the skin using the prototype was 17 lbs versus 4.3 lbs for the rotational punch. Initial force data has resulted in a final blade design that requires less force and includes fail-safes to prevent excessive depth penetration. The resulting wound has clean edges and is of proper dimensions for superior suturing layout.
Files	DSTMQP_Plastipunch.pdf